class Animal:
    name='animal'
    def shout(self):
        print('animal shout')

animal= Animal()
print (animal.name)
animal.shout()

class Dog:
    name='dog'

    def __init__(self):
        self.age = 10
    def eat(self):

        print('dog eat')
dog= Dog()
print (dog.name)
dog.eat()

dog1=Dog()
print(dog1.name)
print(Dog.name)

dog1.name='dddd1'
print(dog1.name)
print(Dog.name)

Dog.name='--dd'
print(dog1.name)
print(Dog.name)
print('.........')
dog2=Dog()
print(dog2.name)
print(dog2.age)